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Journal of Negative and No Positive Results
versão On-line ISSN 2529-850X
Resumo
BONEZI, A; DE SOUZA-CASTRO, FA e BONA, RL. Kinematics and physiological parameters in maximal swimming tests in age-group swimmers. JONNPR [online]. 2022, vol.7, n.4, pp.328-341. Epub 25-Set-2023. ISSN 2529-850X. https://dx.doi.org/10.19230/jonnpr4794.
Objective:
The aim of this study was compared and correlate kinematics and physiological parameters in four maximal swimming tests of two groups of young swimmers.
Methods:
Twelve swimmers, separated in two groups by age (percentile > 50th (n = 6): 15.4 ± 1.11 years old as group 1, and < 50th (n = 6): 12.1 ± 0.83 as group 2) performed four tests during two different sessions. They performed front crawl trials at maximum intensity: 50 and 200 meters on first day and 100 and 400 m meters on second day. Anthropometric characteristics were measured. Stroke rate, stroke length, stroke index, swimming speed and critical speed were obtained by video analysis. Moreover, were measured the blood lactate concentration, heart rate and rate of perceived exertion.
Results:
There are no differences at anthropometric characteristics. We found difference between group 1 and group 2. Better results for performance, swimming speed, stroke length and stroke index in group 1. Swimming speed and stroke index show strong correlation in all tests for group 1 and in 50 and 100 meters for group 2. To measure the swimmer profile is essential to verify the benefits that the training program is or is not providing.
Conclusion:
The parameters evaluated seem related to age and capacities of the swimmers.
Palavras-chave : Biomechanics; Perceived exertion; Lactate; Competitive swimmers.